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Prosedo modular knee joint

Item #: 3R31
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Suggested HCPCS Coding: L5811 + L5845
Restrictions to Coding and/or Coverage may apply

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Prosedo 3R31
Locking knee with flexion resistance sitting assist

The Prosedo 3R31 features a hydraulic flexion resistant sitting assist. The hydraulic can be adjusted based on patient weight and needs.  After disengaging the lock, progressive flexion resistance will support the patient while lowering into a seated position. This can help provide balance and reduce strain on the patient’s sound side.

  • Manual lock - Manual lock knee with unique release function. Disengagement of the lock when partially loaded is possible.
  • Optional lock release - Optional disengagement of the lock via lock release button which is located underneath the blue front cap.
  • Adjustable hydraulics - New to this segment of low mobility products: a hydraulic controlled high and progressive flexion resistance to help provide balance while patients are lowering into a chair.
  • Proximal connection - Prosedo is available with two proximal connection variants: a pyramid adapter or a threaded connector for fittings of longer residual limbs.
  • High maximum body weight - Lightweight design (600 g) with a high weight limit (275 lbs / 125 kg).
  • Tube clamp Ø 30 mm - Pylon is included in scope of delivery.

Benefits for the Patient     

  • Smooth unlocking to help patients more safely lower into a chair and reduce strain on their sound side.
  • Small, lightweight design reduces overall weight of prostheses.


Activity Level K1
Maximum Body Weight 275 lbs (125 kg)
Proximal Connection Pyramid Adapter
Distal Connection Tube Clamp (30 mm diameter)
Maximum Knee Flexion Angle 145 degrees
Product Weight 600 g
Build Height 168 mm
Distal Build Height 147 mm
Proximal Build Height 21 mm


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Prosedo 3R31, 3R31=ST Instructions for Use

Instructions for Use

PDF Document | Published: Nov 1, 2021

LLP Prosthetist Documentation

Reimbursement: Documentation Guide


PDF Document | Published: Mar 3, 2022

LLP Physician Documentation Guide


PDF Document | Published: Mar 3, 2022

3R31 Spec Sheet

Product Information

PDF Document | Published: Jan 6, 2017